How to Choose the Right LiPo Battery for Your RC Truck?

By Ufine, Updated on June 25, 2025

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If you love RC trucks, you probably already know that power makes all the difference. Whether you’re bashing over rough terrain, climbing rocky trails, or racing across a track, the battery you choose affects speed, runtime, torque, and even safety.

One of the most popular and powerful battery types used today is the LiPo battery. LiPo, short for lithium polymer, has become the go-to power source for RC enthusiasts. But with so many options—2S, 3S, 5000mAh, 100C, soft pack, hard case—it can feel overwhelming to choose the right one.

That’s exactly what this guide is for. We’ll break down everything you need to know to choose the best LiPo battery for your RC truck, whether you’re a beginner or a seasoned hobbyist.

Part 1. Understanding LiPo battery basics

Let’s start with the basics. LiPo batteries are a type of rechargeable battery known for their high energy density, lightweight, and ability to discharge at high rates—perfect for fast-moving RC trucks.

Here are some terms you’ll see on a LiPo battery:

Voltage (V): This depends on how many cells the battery has. A single cell (1S) is 3.7V. A 2S battery is 7.4V, 3S is 11.1V, and so on.
mAh (milliamp hours): This indicates how much energy the battery can store. More mAh = longer runtime.
C Rating: This tells you how fast the battery can discharge its power.
Hard Case vs. Soft Pack: Hard cases are more durable and safer for off-road use, while soft packs are lighter and better for racing.

Understanding these values is the first step toward picking the right LiPo battery for your RC truck.

Part 2. Voltage and cell count: matching power to your truck

Voltage is perhaps the most important factor when it comes to choosing a LiPo battery. Higher voltage gives you more speed and torque—but only if your RC truck’s ESC (Electronic Speed Controller) and motor can handle it.

Here’s a quick look at voltage levels:

2S (7.4V) – Great for beginners and casual use. Provides balanced speed and battery life.
3S (11.1V) – Offers more speed and acceleration. Ideal for racing and bashing.
4S and above – Delivers extreme performance. Only suitable for trucks with high-end components.

⚠️ Always check your truck’s manual before upgrading voltage. Using a 4S battery on a system designed for 2S can burn out your ESC or motor.

Part 3. Capacity: how long will your RC truck run?

Another key factor is capacity, which is measured in mAh (milliamp hours). It tells you how long your RC truck will run on a full charge.

Typical capacities:

2000–3000mAh: Short runtimes (10–15 minutes). Ideal for lightweight trucks.
4000–6000mAh: Most common range. Offers 20–40 minutes of moderate driving.
7000mAh+: Long runtimes (up to an hour), but heavier batteries.

Bigger isn’t always better. A high-capacity battery will last longer but also weigh more, possibly affecting handling and speed. Balance is key.

Part 4. C rating: understanding discharge power

The C rating tells you how quickly a battery can release its power. It’s multiplied by the battery’s capacity to give you the maximum continuous discharge rate in amps.

Example:

A 5000mAh battery with a 50C rating = 5A x 50 = 250 amps of continuous discharge.

If your motor draws more power than your battery can safely deliver, you risk overheating or damaging the battery. So, don’t go too low.

A higher C rating offers better performance but often costs more. Look for something in the 40C–100C range for most RC trucks.

Part 5. Battery size and connector types

You also need to make sure your LiPo battery physically fits inside your RC truck’s battery tray. LiPo batteries come in different lengths, widths, and heights.

Types of Battery Terminal Connectors

Check the dimensions of:

Your battery compartment
The battery you’re buying

Also, ensure you use the right connector. Common types include:

Deans (T-Plug)
XT60/XT90
EC3/EC5
Traxxas connectors

If your new battery has a different plug, you can use adapters—but direct connections are more efficient.

Part 6. Safety tips when choosing and using LiPo batteries

LiPo batteries are powerful, but they can also be dangerous if not used properly. They’re sensitive to overcharging, over-discharging, and physical damage.

Follow these safety tips:

Use a LiPo-compatible charger.
Never leave a charging battery unattended.
Use a LiPo safety bag when charging.
Don’t charge a swollen or damaged battery.
Store batteries at 3.8V per cell (storage voltage).
Keep batteries in a fireproof container when not in use.

Proper care extends battery life and keeps your RC truck—and your home—safe.

Part 7. Best LiPo battery brands for RC trucks

There are many LiPo brands on the market. Some of the most trusted include:

Gens Ace
Venom
HRB
Zeee
Turnigy

When choosing a brand, look for consistent performance, accurate specs, and positive reviews from RC communities.

However, if you want a battery that fits your RC truck perfectly—in terms of size, weight, voltage, and discharge—you may want to consider custom-made batteries.

Part 8. Why choose custom LiPo batteries for RC trucks?

Sometimes, off-the-shelf batteries just don’t cut it. You may need a specific size to fit your chassis. Or maybe you want more power, longer runtime, or a special connector. That’s where custom LiPo batteries come in.

Ufine Battery Can Help

Ufine Battery is a trusted Chinese manufacturer specializing in custom lithium batteries for various applications—including RC trucks. They offer:

LiPo battery packs (2S–6S and beyond)
18650 cylindrical cells
LiFePO4 batteries for extreme environments
Ultra-thin, high-rate, and high-temperature batteries

Whether you’re a hobbyist looking for better runtime or a racer who needs maximum power, Ufine Battery can build a solution tailored to your exact needs.

✅ Ready for your custom LiPo battery?

Contact Ufine Battery today for a free consultation and quote.

Part 9. How to extend the life of your LiPo battery

Want to make your battery last longer? It’s not just about buying a good battery—it’s also about taking care of it.

Here are some useful tips:

Don’t drain the battery below 3.0V per cell
Use a balance charger every time
Keep batteries cool—avoid direct sun
Store at room temperature
Charge slowly (1C rate is safest)

Following these steps will not only improve battery life but also help you get better performance in the long run.

Part 10. Conclusion

Choosing the right LiPo battery for your RC truck isn’t just about buying the biggest or most expensive one. It’s about finding the perfect balance between voltage, capacity, C rating, size, and safety—based on how and where you use your truck.

And if you can’t find a battery that fits all your needs, remember that custom LiPo batteries are just a click away.

💡 Ufine Battery is ready to help you power your RC truck with precision. Contact us to get started with your custom LiPo battery solution.